This Iams ProActive Health formula has PreBiotics that work inside the digestive tract to promote healthy digestion and strong defenses. Healthy inside. Healthy outside. Formulated for dogs 1 years and up to 20 lbs at maturity, Iams ProActive Health is vet recommended, premium dog food with concentrated nutrition formulated for the unique energy needs of small dogs. Iams Daily Dental Care™ reduces tartar buildup by up to 50%* Protein from chicken and egg helps build strong, firm muscles while seven essential nutrients nourish the heart.